Home / 137,579,631.42-206,460,248.82-72,928,837.32

Finding the Fourth Proportional to 137,579,631.42, 206,460,248.82 and 72,928,837.32

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Solution

The fourth proportional to 137,579,631.42, 206,460,248.82 and 72,928,837.32 is: 109,441,388.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,579,631.42 : 206,460,248.82 = 72,928,837.32 : x
  2. Step 2: Convert to fraction form
    137,579,631.42/206,460,248.82 = 72,928,837.32/x
  3. Step 3: Cross multiply
    137,579,631.42x = 206,460,248.82 × 72,928,837.32
  4. Step 4: Simplify right side
    137,579,631.42x = 15,056,905,899,240,500
  5. Step 5: Solve for x
    x = 15,056,905,899,240,500/137,579,631.42
  6. Step 6: Final answer
    x = 109,441,388.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.